Number of ways to place n nonattacking princesses on an n X n board.
A245011
Number of ways to place n nonattacking princesses on an n X n board.
Terms
- a(0) =1a(1) =4a(2) =6a(3) =86a(4) =854a(5) =9556a(6) =146168a(7) =2660326a(8) =56083228a(9) =1349544632a(10) =36786865968
External references
- oeis: A245011